"Once everything is gone and Earth is nothing more than a pockmarked moonscape, a rover similar to the one exploring Mars right now, will make its way across our once great land. As the rover examines samples of irradiated soil and transmits the data to the distant civilisation from which it came, it unknowingly parks above an artefact buried deep in a layer of sedimentary ash. It is possible that this artefact once bore the name Come Sundown."